Domestic boiler.



Patented Aug. I2, |902.

J. A. BERNARDI.-

DOMESTIC BOILER. A (Applcaton filed May 2, 1901. Renewed June 26, 1902.)

(No Model.)

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Je//z wf witnesses UNITED JOSEPH A. BERNARDI, OF SALEM, OREGON.

DOMESTIC BOILER.

SPECIFICATION forming part of Letters Patent No. 706,886, dated August12, 1902. Application iilctl May 2,1901. Renewed Tune 26, 1902. SerialNo. 113,3lG. (No model.)

To all whom it may concern: i

Beit known that I, JOSEPH A. BERNARDI, a citizen of theUnitedpStatesLresiding at Salem, in the county of Marion and State ofOregon, have invented certain new and useful lmprovements in DomesticBoilers; and I do declare the following to bea full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates `to improvements in boilers for ranges, andparticularly to an attachment therefor whereby the sediment andimpurities settling in the boiler are prevented from passing to theheating-coil in the waterback and whereby said sediment and impuriticsmay be drawn off fromV the boiler.

The object of my invention is to provide an attachment of this characterhaving separate passages for the conveyance of the cold Water from theboiler to the water-back and the discharge of the sediment from theboiler, said passages being so constructed and arranged as to beindependent of. the water-inlet pipe and adapted to allow only the clearwater to pass to the water-back'while permitting of the Withdrawal ofall the sedimentand impurities settling in the bottom of the boiler andpreventing the same from banking therein.

With this and other objects in view, which will appear as the natureofthe improvements is better understood, the invention consists of certainnovel features ofconstruction, combination, and arrangement of parts, aswill be hereinafter more fully described, and particularly pointed Voutinthe appended claim.

In the accompanyingdrawings, Figure l is a vertical section through aboiler and attachment constructed in accordance with my invention. Fig.2is an enlarged detail sectional view of the attachmenu'land Fig. 3 is asimilar view showing a slight modification.

Referring to the dra'win gs,1 represents what is termed a domestic orrange boiler, having connected to its top portion a supplypipe 2, whichis vertically arranged within the boiler and has its freevlower endabove the bottom thereof, said bottom being provided with ascrew-threaded opening 5, for a purpose to be presently explained.

' The numeral 3 indicates the sediment-casn ing, which consists ofhaving cast or formed therewith three projecting or extended openings 5,G, and 7, of .which 5 and 7 are arranged one above the other atthe topand bottom of the sediment-chamber, and the one, G, at one side thereof.The lower opening 7 is provided with exterior and interiorscrew-threaded portions, by means of which a clear-water tube 4, havingexterior screw-threads. 8 at its lower extremity is connected to theinterior screw-threads of the opening 7and passes centrally andvertically upward through the chamber 3 and throughthe opening of theprojected end 5, with its free end extending somo distance above thesame. The sediment-casing, with the connected water-tube 4, is attachedto the bottom of the boiler by simply securing the screw-threaded upperend of the projection 5 with the screw-threaded opening 5f in the bottomof the boiler, whereby the free end of the tube 4, after the chamber 3has been secured to the boiler-bottom, extends above the same at oneside of the free end of the supply-pipe 2. Aspace 4a is. formed aroundthe tube 4 by the inner surrounding upper portions of the attachedscrew-threaded portion 5, and by this means of constructing thesurrounding opening 4nu the sediments are permitted to pass therethroughfrom the boiler to the sediment-casing, where they are drawn off by awaste-pipe connection with the side outlet 6, which is controlled by acock or faucet therewith for the purpose. A water-back supply-pipe isconnected to the exterior screwthreaded end projection 7 of thesedimentcasing 3, which is supplied by a direct flow of water throughthe free upper end of the clear-water-supply tube 4.

When it is necessary to properly iu'sh an cleanse the sediments from thebottom of the boiler, so that the same will pass through the surroundingspace 4fL around the tube 4 and into the sediment-casing and through theoutlet-opening 6, the same is accomplished by means of turning off theflow of water from the supply-pipe 2 and opening the faucet connectionin the waste-pipe, by means of which the Water contained in the boilerpasses through'the Vsaid surrounding space 4a into the casing 3 andoutthroughthe opening 6. When the boiler has been entirelyrelieved ofwater, the iiow of water is again turned onto the supply-pipe 2 andpasses through.

IOO

the free end of said pipe with suicient force to thoroughly cleanse thebottom of the boiler and casing 3 from all foreign substances. When itis thought that the water has run a sufficient length of time throughthe free end of the supply-pipe 2 to clean the boiler bottom and casing,the cock or faucet at the outlet 6 is turned to its normal position,thereby permitting of the boiler to be refilled with a fresh supply ofWater.

I am aware of the patent to Gibson, numbered 165,724 and dated July 20,1S75,wherein is shown an attachment consisting of a single castinghaving two passages, one for the sediment and the other for the clearwater, the latter passage being eccentrically arranged within thesediment-passage and connected at its upper end, in which are formedslots to the lower end of the water-induction pipe. In the operation ofthis device the water from the induction-pipe discharges directly in theclear-water passage and the major portion thereof passes, with theimpurities contained therein, to the water-back, while a smaller supplygushesthrou gh lthe slots in the clearwater pipe into the boiler. Theobjection to this is that no time is afforded to allow the impurities tosettle, but they are carried along with the water to the water-back tobe deposited in the heating-coil, and at the same time t-he gushing ofthe water through the slots into the boiler stirs up the impurities inthe bottom of the boiler and prevents them from quickly settling. Thearrangement of the water-passage :is furthermore objectionable in thatowing to its eccentric disposition the sediment on one side only of thewaterpipeis allowed to discharge,while that on the other side of thepipe is permitted to bank up and retard the circulation. My constructionavoids these objections, as sufficient time elapses between the inlet ofthe water through the induction-pipe and its outlet through theclear-water tube to allow the impurities to settle, and by arrangingsaid tube concentrically within the chamber 3 the free discharge ofsediment from all sides is insured and banking of the sedimentprevented.

The construction shown in Fig. 3 differs from that shown in Figs. l and2 in that the sediment discharges through an outlet 6a in the bottom ofthe chamber 3, while the clear water discharges through a side outlet7a. The mode of operation of the modified form of the invention is thesame as that previously described. i

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

In a range or domestic boiler, the combination with the boiler havingasupply-pipe arranged vertically therein, with a free and unobstructedlower end, and a screw-threaded central opening` in the bottom of theboiler, of a sediment-chamber having at its side a projectingscrew-threaded outlet connection, a screw-threaded projecting upper end,and a projection at its lower end having interiorly and eXteriorlyscrew-threaded portions, a tube-pipe provided withexteriorly-screwthreaded lower portions connected to the in`teriorly-screw-threaded portion of the lower projection so that saidtube will extend centrally and vertically through the sedimentcasing andlikewise through and above the upper screwthreaded projection, thegsaidscrew-threaded upper end of the upper projection adapted to be connectedto the screwthreaded central opening in the bottom of the boiler withthe free end ofthe tube eX- tending above said bottom and at one side ofthe free end of the supply-pipe, awater-back pipe connected to the lowerprojecting screwthreaded opening, and means connected to theoutlet-opening to relieve the sedimentcasing and boiler of theircontents, and a space surrounding the upper end of the tube for thepassage of the sediments from the boiler into the sediment-casing,substantially as specified.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOSEPH A. BERNARDI.

Witnesses: v

MONTIE LEsLEY, LoUIs ASHLIMAN.

